Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

William J Cullen MD LLC

Organization Internal Medicine Physician · NPI 1710212865

William J Cullen MD LLC is an Internal Medicine Physician in Silver Spring, Maryland. Licensed in Maryland. Registered with an NPI since 2009.

Licensed in
MD
In the registry since
2009
What do these letters mean?
LLC — Limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

9509 Thornhill Rd
Silver Spring, MD 20901-4835
Phone: (301) 332-4817
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence D51779 (MD)

Record details

NPI number1710212865
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official William Cullen — Ceo · (301) 332-4817
NPI enumeratedOctober 7, 2009
Last updated in NPPESOctober 7, 2009
Mailing address9509 Thornhill Rd, Silver Spring, MD 20901-4835

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